DoYourClone uses a simple GUI to do what it says, copy the raw data, either existing files or including free space [e.g. for data recovery], on a disk or partition to some other storage drive. The button to activate is a noticeable key button [that may not look to you like a key icon] on the lower left. On the top left there's a link to create rescue media -- you can use a drive [e.g. USB stick] or create an ISO to burn to disc. Testing in my Win7 32-bit VM, I went the ISO route & it worked, bringing up a window that looked the same as the regular app. I can't say anything about the compatibility of the bootable USB sticks it creates -- your mileage may [likely will] vary depending on the device you're trying to boot. The product page talks about basically creating a Windows to Go drive, cloning an existing copy of Windows to a USB stick / drive. Tried that too, which took a while... DoYourClone copied the contents of the entire disk, so it includes the boot files in their hidden partition, and it did alter the BCD boot loader to presumably make it work on a USB stick. In my experience getting the boot loader to work on a USB stick is iffy, so again your mileage will likely vary. I couldn't test it -- this PC will not run Win7 [no drivers] -- but if the USB stick boots for you Win10 &/or Win11 should attempt to download and install the drivers needed to run on different hardware. However, it doesn't always work that way -- maybe why Microsoft stopped offering Windows to Go in Win10. Win7 & Win8 on a USB stick are iffy regardless how you do it & Not recommended.
The app itself takes up ~550MB in the program's folder, otherwise adding 2 [EaseUS] drivers to Windows\ System32\ Drivers\. I recorded 132 new registry entries.
Personally I believe in backing up your hard disks, and use Macrium Reflect for that. Macrium Reflect can clone disks &/or partitions, or you can simply restore a backup to a new location, so I can't see any use for DoYourClone, but that's me. If you don't want to bother with running backup software like Macrium Reflect, DoYourClone should be a workable alternative.